摘要
线圈靶测速是一种行之有效的弹丸速度测量方法。针对线圈靶测速中产生的电信号受较大外界干扰而较难提取信号过零点之事实 ,提出利用小波变换来分析处理含噪信号 ,去除绝大部分外界干扰 ,并讨论了一些可能对结果产生影响的情况 ,结果证明了该方法的有效性。
Coil target is an effective method to pill velocity measurement. The fact is that the voltage signal is disturbed and the zero is difficult to identify. In order to solve this problem,wavelet transform is used to deal with containing noise singal and to filter the much foreign noise, and the instances influencing the result are discussed.The results proved the validity of this method.
出处
《南京理工大学学报》
EI
CAS
CSCD
北大核心
2001年第3期328-331,共4页
Journal of Nanjing University of Science and Technology
关键词
线圈靶
测速
小波变换
信号过零点
coil target, velocity measurement, wavelet transform
signal zero crossing
